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//
// VMime library (http://www.vmime.org)
// Copyright (C) 2002-2012 Vincent Richard <[email protected]>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License as
// published by the Free Software Foundation; either version 3 of
// the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with this program; if not, write to the Free Software Foundation, Inc.,
// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
// Linking this library statically or dynamically with other modules is making
// a combined work based on this library. Thus, the terms and conditions of
// the GNU General Public License cover the whole combination.
//
#include "vmime/utility/inputStreamStringProxyAdapter.hpp"
#include "vmime/utility/stringProxy.hpp"
namespace vmime {
namespace utility {
inputStreamStringProxyAdapter::inputStreamStringProxyAdapter(const stringProxy& buffer)
: m_buffer(buffer), m_pos(0)
{
}
bool inputStreamStringProxyAdapter::eof() const
{
return (m_pos >= m_buffer.length());
}
void inputStreamStringProxyAdapter::reset()
{
m_pos = 0;
}
stream::size_type inputStreamStringProxyAdapter::read
(value_type* const data, const size_type count)
{
const size_type remaining = m_buffer.length() - m_pos;
if (count > remaining)
{
std::copy(m_buffer.it_begin() + m_pos, m_buffer.it_end(), data);
m_pos = m_buffer.length();
return (remaining);
}
else
{
std::copy(m_buffer.it_begin() + m_pos, m_buffer.it_begin() + m_pos + count, data);
m_pos += count;
return (count);
}
}
stream::size_type inputStreamStringProxyAdapter::skip(const size_type count)
{
const size_type remaining = m_buffer.length() - m_pos;
if (count > remaining)
{
m_pos = m_buffer.length();
return (remaining);
}
else
{
m_pos += count;
return (count);
}
}
stream::size_type inputStreamStringProxyAdapter::getPosition() const
{
return m_pos;
}
void inputStreamStringProxyAdapter::seek(const size_type pos)
{
if (pos <= m_buffer.length())
m_pos = pos;
}
} // utility
} // vmime
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